Hinge



Dec. 6,1 1927. l

w. A. KRENTLER.

HINGE Filed Nov. lO, 1926 2 sheets-sheet 1 z Vl/ Dec. s, 1927. 1,651,824

W. A. KRENTLER HINGE Filed Nov. 1o, 1926 2 sheets-Sheet 2 /K/ddq 'orivey Patented Dec.A 6, 1927.A

WALTER A, K-Rniv'rnnn, on 'ian-Inma?, MICHIGAN, Assisvon-:Ib j-KnETIInRn-mvonn HINGE LASTVCOMPAIW, or-Dnrnoir, MICHIGAN, AQCORPURATIDN.fFIvIoIIiGAISI; I

HINGE. y

y My present inventionis a novel and iinmay be positively locked, to pireveilit'inove-v ment of the't'vvo members connected bythe I hinge, and quickly` unlockedvvhen desired.

ik furtherl and important ie'zi'ture' ffthe present invention is the'provision ofs'uch "aA positively locked hinge, YSvhih"nitty be un looked Without disturbing the relative locked position of' the l'iing'e members. v y

Further objects of the invention Aare "to construct Vsuch n. hii'ige with e I'niniinin number of parts, thussiinplifying andV econoinizing the niann'facture-f thehinges,Y find inci'litting operation, nsse'nibling and "repairing. v

An important adaptation of` niy novel hinge is its'utilizstti'lon in vlasts of the type, and when iu'sed to perform the tuii'tin of a' last hinge, presents :inV improvement over the last structures,',illustrted in Y"the prior Patents nos. ,Igeoiei "and 1,604,522, issued OCtoberQ, 1926. y.

In mnnfatiiring hinge `lasts it is iinpo'rtavnt vto Iproduce "a last vvith vgreat strength, and `yet which ivlill hgive a `Ininimuni numberof parts, afnd'lso with aslittle weakening or cutti-n'gavvay oftheivod vo'i` the last as possible. To this'end en important feature of iny present Construction consists in lproviding nlastihinge with four .puits oi' 'with but lthree ni'einbers considering 'the' spring and tubeas onenieinbei. yThse ineinbers comprise a spiin'g and tubular hinge ineinbei secured to Vtheffore :part-of the lest, :i second hinge ineinber Iseclfired'to the 'heel part, and n coinbined 'spring bearing and holding, locking and 'unlocking 'niemberikas sei'n'b'le'd ivi-th Athe hinge parts, but niovble f from locking to i'uil'ocki'ng ,position `an`d vice verse.- ivithout"disturbing the IelvaLtive'p-osif tion of thelzistor'liiige p'tiftsinloeledor unlocke'dcondition. When the locking 4ind unlocking n'ieinber inoved `to 'unlocked pov'sitio'in"the last parts will still he held in Apushed by my present-novel inn lso constrctfmy pieseiit "novel h considered requisi locked positi'f'in,l regl-dy for `unlockinel o'r colhowever slightly, 'fit would @fetchV t hiked e 'the relative positions of' thedestp "ts, ain- 'taining'e :true'nd-'snioothj siirfgtce k b ed and described lflel/iii. nth

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in moving the locking Ineinbe'r'to'in'lc Y t, position I'the spring itefnsion '"ezgeifted -oi 'fthe hinge meinber"seci 'd' o heil' eli 4be increased from" e n fXVi-ted `when he lockingnieinbris, 1n locked Ifpos lo'nf. This further insures holding of "fthe 'last 'parts'intheirreltivepsition f Furthermore, lv'by the 'use "of [n'f'fv'e'l hinge, 'I' sfineebl'rdfto ',sulosta yt'itt'lly'g'eliii'nif mite' theessingif"ngffep, wird e1 part of the lest, which hasheretofrel'been H"te to on ii'idiytev sthe inovingvhinge in s. y last of greatly lcreeseds ve ity, lengtheni'nr selling thed'n t, y I l parte 'ini-efe so) rece L frhls'faisqxisimfimge in k:lsts "utilizfiiifgny vantage,.in that When the "lest" 6 0 tion,

be moved'from locked to unlocked position without disturbing the relation of the other hinge members, is novel, and I have therefore claimed the same herein broadly.

I alsobelievethat a last, constructed and provided with my novel hinge, and with the Vtui-ther advantages peculiar to last construction, and made possible by the use of my present' hinge, is novel, and I have likewise claimed such-a'last broadly herein.

While the preferred embodiment of my hinge parts 1n locked position ready to be novel hinge has been herein illustrated as ap-v plied to a last, it will ybe appreciated that I am not limited thereto, but may utilize my novel hinge von any articles or in any line where such a hinge would1 be practicable. I have shown, in the present case, one modification ofthe application of my novel hinge. and many ksuch applications will doubtless occur to those skilled in the arts.

'Further 'features of the invention, novel combinations of parts, rvaflvantages, anddetails will behereinafter more fully pointed out and claimed. Y i l -Referring to `the drawings, illustrating preferred embodiments ofl my presentinven- F ig. 1 isa vside View of'a last,.in locked position, partlyrin cross section,. utillzing my novel hinge;

Fig. 2 isa cross sectional detail illustrating the locking and unlocking member in unlocked position; Y' l Fig. 3 is a cross sectional detail illustrating the last in collapsed position;

Fig. 4 is a cross sectional view on tlieiline 4-4 of Figi 1;

Figg5 is a cross 5 5 ofrFig. l; l.

Fig. 6 beine' a sectional view on the line D vrperspective locking and unlocking member; y Fig. 7` s a cross sectional vicw of a inedi- Iication of my novel hinge, on the line 6 8 ofFigS;` y' Fig.'8 being a top plan view of, theI structure illustrated in Fig. 7 and l.

vFigsf), 10 and 11 being` fragmentary details of the hinge parts utilized in this modiiication. Y i As shown inthe drawings, my nevel hinge, comprisesessentially a spring l, and plate or toggle 2. Akiixed pivot ypin 3 provided for the plate'2. One end of the plaie 2 is notched, shown at the nose or lip A member 6 `is interposed between the plate 2 and spring l, having a 'recess or slet 7 through which the lip, lock or noser 5 pijojects when the hinge is in lockii'igirx'isitioii. The spring lbears againstthe front face e of this locking and unlockinv` member 6, eX- erting tension and pressure on the plate 2, to hold the same in locked position. The nose '5 abutting against the' lower edge') of the slot 7 preventsv thehinge being opened, until the member 6 has been moved to nnview of. the

locking position. On being moved to unlocking position, which consists in pushing the member 6 forwardly, whereupon the combined pushing forward and action of the spring 1 on the face .8 will disengage the nose 5 from the vrecess 7, and slightly raise the member 'foicing therear face 10 of the locking member against the noseV 5. The member 6- being freely displaceable relatively with the plate 2 Idees not disturb the-relative positions of the hinge parts, leaving said opened, `on pressurebeing exerted on the hinge members. The movement of the face 8 of the member 6, forwardly, shortens or compressesthe spring 1, thus increasing the tension of the spring 1 on the plate 2,.and insures the plate 2 remaining in locked position, although-unlocked, until opening pressure is applied thereto.

. The hinge above described is particularly adapted to hinge lasts, of the type illustrated and described in the said prior patents. In the present drawings the last comprising a heel part 11 and fore part 12 is provided. This last is bored or recessed as shown at 13 in the heel partand let in the fore part. A tube 15 is inserted in the recess 14 and held in place byra rivet or pin 16 passing through the wood of the fore part and a tube. The plate or ytoggle 2 is held in position in the recess 13 by a pin 17,

' passing through the wood ofthe last and the plate. AThe tube 15 is lslotted at its rear- `most end, as shown at 18, to permit the insertion of the front end of the plate 2, and the ytube 15 and plate 2 are pivoted on the common pivot pin 3. A spring 1 is inserted in the tube 15, one end of the spring bearing against thepin 16, and the other end of the spring bearing against the face 8 of the locking member 6, which locking member or trigger 6 is shown in Fig. 1 in locked position, with the nose or lip 5 entering the slot 7 and resting upon the lower edge 9 of said slot. The fore part'12 and heel part 1l are divided by a line of cut to give to the abutting faces a knuckle joint construction, wherein the fore part 12 is formed with a concave face 19 and the heel 'pai-t with a corresponding projecting knuckle oi' convex surface 20. i This line 0i cut also teriiiii'iatcs at the bottom of the last in the abutting faces 21 on the fore part and 22 on the heel pari, and provides a firm er lock bearing against breaking tension vduring the bottoming or. other operations.

i With the last in extended position, `shown in F 1, a locking contact of great strength is required and for this purpose the nose or projection 5 and bottom 9 of the slot 7' produce a positive unbreakable locking ac- -tion on the hinge members, and hence on the last parts 11 and12. This structure, combined with the knuckle joint feature, as-

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A1,565 Heeft sui-es positive locking engagement irrespectiye ot any v*wear-of thelwood, pins; metal, or looseness rn these parts, -aords great v:rigidity randl is fable "to .withstand torsional 4or other breaking strainsin Athe last. I so 'form theseinterlocking"member-sor surfaces to y render lthe'collapsing vor flexing 'of the *last impossible, without 1 lirst releasing the 2 mem- 'ber 'member 6 is 1effected.without movement or `distortion -*ei-ther -o'fthe hinge orlo thelas't fparts,leavin`g the la'stparts still in locked -berf 6 yfrom lockinge engagement. This loch ingmember' has-a'neclr 2B, which slides in the slot 18 in the I"tubular hinge I'member '15,

Vtandan enlargementor head 24on the bottom of the member 6 prevents removal ot "the said member A'from the slot, upwardly, the "hinge plate '52 prei'fe'nting'removal oli-:the member 6 'rearwardly ol"4 ythe slot.

llhen V'itis.desiredftogUnlock -the last, lea'v `locking menberf is moved lfor'ward-lyftothe position "illustrated yin Fig. 2, whereupon the combined forward Y1n'oyement and vtension "of the lspring -w'villfrelease the nose` or projection -5 from the recess '7, and will Y slightly -raise'thevniembervf, until the nose 5 abuts against the rear face l0 of the mem- 6. This unlocking movement ot the posit-ion, although unlocked. This is of grat advantage, and pese'nts A'a smooth, tinish/ed lsurface along the bottom of the last, j 'preventing pinching or gripping of the lin` ing ofthe shoe. Jllithfth'e member 6 in 'unlocked l'positiomfth'e -last"p.a1ts, as clearly shown in Fig. 3, "can vbe 1readily,'quiclly, vandk easily collapsed,` or shortenedas -sliownin Fig. 13, thus permitting great spee'd 'in thev operation of fp'ulling alastl'rom the shoe, yelimuniting the danger of straining the shoe @upper during theaction, andfpresents a distinct andl desirable feature 1n lnng'elast Co'nstruction. Inorderto permit ulllflexingof the'last parts, :and pern'iit'th'efaces V25 of 'the torel part and Q6 ofthe heelpartt'o contact,

I may recess the `yfore part r12 slightly, at 27,

to accommodate orf house the locking and unlocking member 6, 'but such recess Vis so small 'as'to' in-no Way weaken thewood of the last.

A recess `28 isl also formed -in'thelheel part l'lin which the lockingmembert is housed, see Fig.`2l, the locking member t3 being 4so constructed and arranged that A'the lower part oli-the handle' portion willfbe housed in the lrecess 27 and the upper partof theV handle portion housed in the recess 28.

Then desiredto again extend the last, to assume 'the positron illustrated inFig. l, 1t

is onlyy eceSsary to swing'the heel .part of the last around the pivot 3,' until the two parts jot'the last :have assumed fthe position in l, the "spring lassisting.in'moying the yheel to lockingposition, "whereupon the locking and unlocknfgmlember 6 instantly --and automatically fretarns-tornerrnal locking position' 'lTo l insure positive lockingr of@ the hinge parts, v*the rear face' oit the trigger "'6 out of line, the nose Y5 will be guided bythe concaved' Vsides 'offthe trigger into the slot 7.

" is lvconcai'ffed 'lad-jacent the slot 7. *'llhus, 'Y shoi'ild eitherfthelooking portion tof the "-toggle, or the slot -7of the trigger'lbe This lisan 'important iffeat'ure, andI insures jpositiireflocling of the last and the hinge4 part-s. flt' wrll'ithus be seen,'that lhave proc 'duced-a enovel --la'st, incorporating myv 'novel v"desirable flast 'of the '-so'fcalled ',lnuclle Ajoint, or hinge ty'fpe.`

-Reterringnowto Figsy to 1l, inclusive,

tliese illustrate a modilication'ot' my ynovel "hinge, and the i application :thereof to= arti cles other than lasts, vbut "the structures, y'and yprinciples oi operation, of the .two forms are 'so f closely co-relatedthat -I-have included `this modification in the-present application.

4r-s shown in ,these Figs. Z to ll, this-form etniyno'vel hingefis appliedto two relatively 'movable partsSO and 31, which Ina-yrepresentfa' door, lfor example, V0r the like. .InI the present modrlication, -iny 'hingeV comprises" two partsorleayes and 33, each-oneliked v ltoits relatively inovable part by screws `oithe like 34. "lhehinge leafl or memberf32 :has va plurality vofiarms, the outerv arms:49K

'itermifnatingf-in eyes 36. Theiinner pai-r terminatefat their underside,'in shoulders or proJection's 40, forming between 'these' shoulder-s a slotor opening Ll-l.V

lli() Url,

The hinge leaf or member has a pair of l "arms 42,' 42 looped'to form eyes 43, 422

lWhen assembled, `the eyes 43 and 36 are in 1 alinenienhfan'd a pintle le passes therethrough, forming an 'articulated joint. The

leal' also has a central armyll loi-med at its outer end 46 with a slighthoolr or curve. A locking 7and unlocking lever or member L7 is interposed between the two leaves v32 and-'33, and has aislot -4-8 .into which the hook yorinose 4.6 'ofthe arm 45 normally projects. When in locked position,` as shown., in `ll`i'gs.'7 and 8,'the hook or nose 4:6 `is .in the slot 4S, resting 'on the loweredge 49 or said-slot@ and the 'shouldersor projections.

40 engage the recesses`50,l50`formed 'by the Vpairs of lugs `5l, 5l fand 52, 52. The neck 53 iitting in the slot orfrecesses 41 between thelshould'ers 40. Aspring is provided, one end `resting-inya recess'-and the; other end-abutting againstthefface 56 of the-u lQcking letter orfmember et?.` Thus the locking x level? iS ,held in locked pQ'StOl by then-reef sure of the spring 54, rmly holding the Alocking member in engagement as shown.

against, and Vmaintaining the hinge members as well as the parts to which they are secured, in locked position, although ready for unlocking. The movement of Vthe lever 47 from locked to unlocked position, does not disturb the relative positions of the hinge members 0r hinged parts.

Alfter articulation or opening of the hinge, and upon return of the hinge members to the position shown in Fig. 7the locking lever 47 will automatically return to locked position, preventing articulation of the hinge until movement of the locking member 47 to unlocking position.

I believe that such a novel articulated hinge, capable of being locked in rigid position, and capable of having the locking means moved to unlocking position without disturbing the relative position of the hinged parts, is novel, and I have therefore claimed the same herein broadly.

The close relation of the two 'forms of l hinges illustrated in the present case will be apparent, from a glance at the drawings. For example, the leaf 32 corresponds to the vtube l5, the leaf 33 corresponding to the toggle 2. The trigger is substantially the same in each instance. The pintle 44 corresponds to the pivot pin 3, and the spring 54 peri'orms the same function as the spring l. Thus I have utilized the same principles of construction and operation in ea'ch of the forms of hinge illustrated herein, and althougheach is applicable to a different purpose, the similarity of'principle and opera-- tion warrants the inclusion of both. forms in the present case.

lVliile l have necessarily described my invention somewhat in detail, .it will be apn prcciated that .l am not limited thereto, but may vary the size, shape and arrangement olI parts within reasonably wide limits, wit-liout departing trom the spirit of the invention, so long as l adhere to the general theory and principle of an articulated hinge,`

utilizing a. single locking and unlocking member, detachably interposed between the hinge members, and serving thetriple purposes of spring bearing and holding, locki ing, and unlocking, and capable of move-y ment from locking to unlockingV position without disturbing the relation of Vthe. hinge parts.l

My invention is further described and delined in the forni of claims as follows l. A hinge of the kind described, comprising two relativelyv movable members, a4

locking and unlocking member interposed between and in constant engagement with one of said members, said member being movable from locked to unlocked position without disturbing the` relative lockedposiwithout disturbing the relative locked posi tion ot the hinge members, a face on said interposed member, and a spring in constant engagement with said face to hold said interposed member inV locking or unlocking position. y p

3. A hinge of the kind described, comprising two relatively movable members, a trigger interposed between said members, locking means on one of said members,

cooperating locking means on said trigger,

and means to guide the first said locking means into the locking means on thetrigger.

4. A hinge of the kind described, comprising two relatively movable members, a trigger interposed between said members, a projection on one of said relatively movable members, a slot. in said trigger, and means to guide said projection into said slot to'lock the relatively movable members.

'5. A hinge of the kind described, comprising two rrelatively movable members, a trigger interposed between said members, a projection on one oit said relatively movable members, a slot in said triggerthe sides ot the trigger adjacent the'slot being concaved to guide said projection into said slot to lock the relatively movable members.

6. A hinge of the kind described, com-A prising two relatively movable members, a trigger interposed between said members, a projection on one of said relatively movable members, a slot-in said trigger, the sides ol the trigger adjacent the slot being concaved to guide said projection into said slot tolock the yrelatively movable members, said trigger being movable to unlocking position without disturbing the relation of the hinge members. 7. A hinge of the kind described, coniprising two relatively movable members, a trigger interposed between said members, a projection on one of said relatively movable members, a sl'ot'in said trigger, the sides of lou the trigger adjacent thevslot being concaved to guide said projection into said slot to lock the relatively movable members, said :nemesi trigger 'being movable to unlocking position Without disturbing the relation of the hinge members, and a spring bearing against said trigger. in both locking and unlocking position.

8. A hinge comprising tvvo relatively movable parts, a. spring, andan interposed member affording locking means, unlocking means, and means to constantly hold said hinge parts under yielding tension of said spring. a Y. 9. A hinge of the kind described, comprising tvvo relatively movable members, a locking and unlocking memberinterposed between said members, said member being movable from locked to unlocked position Without disturbing the relative locked position ot the hinged members, a spring in constant engagement with said interposed member holding said interposed member in locking or unlocking position, a tubular member in Which said spring is housed, said tubular member being provided With a slot,

' the lower end of said interposed member projecting through said slot, and means to prevent removal of the interposed member from saidtubularmember. e e f '10. A hinge of the kinddescribed,` comprising two relatively movable members, a locking and unlocking member interposed between said members, said member being movable from locked to unlockedl positionI Without disturbing the relative locked po-y sition of the hinge members, a spring in' constant engagement with said interposed member holding said interposed member in locking 'or unlocking position, a tubular member in Which-said spring is housed, said tubular member being provided With a slot,

the lower end of said interposed member projecting through said slot, andv a projeca tion on said loiver end 'engaging' thel sides of the slot to prevent removal ot the interposed member from said tubular member.

In testimony Whereot,l have signed my name to this speciiication.

AWAILLER A. KimNTLER.` 

